“siren (n.) in Greek “a deceitful woman,” perhaps literally “binder, entangler,” from seira “cord, rope.””*

*Online Etymology Dictionary.

From Bitch: What does it mean to be female? (2022), by Lucy Cooke:

“Humans have a long-standing fascination with the female sexual cannibal that dates back to those sailor-eating sirens of Greek mythology, and probably even further. She’s the ultimate femme fatale. A deviant diva whose voracious sexual appetite and erotic dominance both titillate and terrify – perverting the ‘natural order’ of male supremacy and sexual potency.
This cultural enthralment and its associated stereotypical baggage seeped readily into science. A recent inventory of the language used in scientific papers documenting the phenomenon complained of the recurrent use of ‘highly loaded’ language promoting ‘a negative stereotype of sexually aggressive females’.
Since the time of Darwin the praying mantis and her fellow date-munching arachnids have aroused the interest of scientists, often male, seduced by a female killer that apparently defies the laws of evolution. The true story that’s emerging of the sexual cannibal is far more complex, and far less erotic. Sexual cannibalism disguises a multitude of phenomena, none of them sins. Just as the promiscuous female lion, langur and dunnock are not being wanton, but actually assiduously maternal and simply trying to do the best for their kids, so the female sexual cannibal is similarly merely protecting her future offspring’s best interests.
The costs and benefits of this enigmatic behaviour vary depending on whether the consumption happens before, during or after sex, but nevertheless sexual cannibalism has been shown to benefit one or even both of the sexes. It likely evolved independently numerous times in different taxa for different reasons, and is maintained by a cocktail of selective forces; as if sexual conflict, sexual selection and natural selection got drunk together and had a very messy night. The result may seem bewildering, but if you untangle the jumbled-up silken threads, then it all starts to make sense.
Although the tiny male golden orb weaver, tiptoeing to his death across a giant female’s web, may still struggle to agree.”

From the Online Etymology Dictionary:

“man-eater (n.)

also maneater, c. 1600, “a cannibal,” from man (n.) + eater. By 1829 in reference to the great white shark; by 1840 of tigers in India that have acquired a taste for human flesh and have a special propensity for killing and eating humans; later also of lions. Also used of horses that tend to bite (1840). By 1906 of women (the female equivalent of a womanizer). Related: Man-eating.

The term Man-eater is applied to those Tigers, which, deserting their usual haunts in the jungle, frequent the neighbourhood of Villages, and prey chiefly on men. They are almost invariably found to be old animals, and generally females. They are usually very cunning and cowardly. [Capt. Walter Campbell, “The Old Forest Ranger; or, Wild Sports of India,” 1842]